I ought to pray and labour for the deepest sense of my utter weakness and helplessness that ever a sinner was brought to feel. I am helpless in respect of every lust that ever was, or ever will be, in the human heart. I am a worm—a beast—before God. I often tremble to think that this is true. I feel as if it would not be safe for me to renounce all indwelling strength, as if it would be dangerous for me to feel (what is the truth) that there is nothing in me keeping me back from the grossest and vilest sin. This is a delusion of the devil. My only safety is to know, feel, and confess my helplessness, that I may hang upon the arm of Omnipotence.
—Robert Murray McCheyne
Memoir and Remains of the Rev. Robert Murray McCheyne (Edinburgh: Oliphant Anderson & Ferrier, 1894), 157.